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drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver

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The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from  of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Lothar Waßmann 2016-07-12 15:30:03 +02:00 • committed by Philipp Zabel
parent d72daa0d75
commit fafc79ef2e
4 changed files with 20 additions and 6 deletions
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10
drivers/gpu/drm/imx/parallel-display.c
View file

@ -33,6 +33,7 @@ struct imx_parallel_display {
void *edid;
int edid_len;
u32 bus_format;
u32 bus_flags;
struct drm_display_mode mode;
struct drm_panel *panel;
struct drm_bridge *bridge;
@ -80,6 +81,7 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
return -EINVAL;
ret = of_get_drm_display_mode(np, &imxpd->mode,
&imxpd->bus_flags,
OF_USE_NATIVE_MODE);
if (ret)
return ret;
@ -125,11 +127,13 @@ static int imx_pd_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_display_info *di = &conn_state->connector->display_info;
struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
imx_crtc_state->bus_flags = di->bus_flags;
if (!imxpd->bus_format && di->num_bus_formats)
if (!imxpd->bus_format && di->num_bus_formats) {
imx_crtc_state->bus_flags = di->bus_flags;
imx_crtc_state->bus_format = di->bus_formats[0];
else
} else {
imx_crtc_state->bus_flags = imxpd->bus_flags;
imx_crtc_state->bus_format = imxpd->bus_format;
}
imx_crtc_state->di_hsync_pin = 2;
imx_crtc_state->di_vsync_pin = 3;